Introduction to Lipids in Nutrition
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Questions and Answers

What is the main benefit to the host from microbial activities described in the text?

  • Metabolism of digestible carbohydrates
  • Modulation of lipid global metabolism (correct)
  • Enhanced immune response
  • Stimulation of lipid beta-oxidation

How does dysbiosis affect the host according to the text?

  • Promoting undernutrition or malnutrition (correct)
  • Regulating lipid absorption
  • Enhancing the immune response
  • Increasing lipid oxidation

What is the role of L.paracasei as discussed in the text?

  • Promotes lipid beta-oxidation
  • Secretes L-lactate to elicit lipid storage (correct)
  • Metabolizes malonyl-CoA
  • Inhibits enterocyte lipid storage

What effect does acetate secreted by E.coli RB01 have on enterocyte lipid metabolism?

<p>Promotion of AMPK/PGC-1α/PPARα signaling pathway (D)</p> Signup and view all the answers

What is the significance of m-ICcl2 cells in studying lipid metabolism as per the text?

<p>They express genes involved in lipid absorption and transport (D)</p> Signup and view all the answers

How do L.paracasei ATCC 334 and E.coli RB01 alter enterocyte lipid metabolism?

<p>By secreting acetate and L-lactate respectively (B)</p> Signup and view all the answers

What percentage of total caloric intake do lipids provide in adults?

<p>30-40% (D)</p> Signup and view all the answers

What is the main source of energy for breast- and/or formula-fed infants?

<p>Lipids (B)</p> Signup and view all the answers

Which of the following is the primary component of lipids in a normal western diet?

<p>Triglycerides (A)</p> Signup and view all the answers

What is the first step in the absorption of lipids in the gastrointestinal tract?

<p>Emulsification and hydrolysis of triglycerides and cholesterol (C)</p> Signup and view all the answers

What happens to the products of lipid digestion within enterocytes?

<p>They can be oxidized or recycled for the synthesis of TG and CHOL esters (D)</p> Signup and view all the answers

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